Tsukasa Saida MD, Presenter: Nothing to Disclose

Yumiko Oishi Tanaka MD, Abstract Co-Author: Nothing to Disclose

Koji Matsumoto MD, Abstract Co-Author: Nothing to Disclose

Toyomi Satoh MD, Abstract Co-Author: Nothing to Disclose

Hiroyuki Yoshikawa MD, PhD, Abstract Co-Author: Nothing to Disclose

Manabu Minami MD, PhD, Abstract Co-Author: Nothing to Disclose

The International Federation of Gynecology and Obstetrics (FIGO) recently underwent significant revision for cancer of the ovary. The revision is based upon the concept that high-grade serous tubal intraepithelial carcinoma (STIC) may be the origin of some high-grade serous carcinomas (HGSC) of the ovary and peritoneum. Therefore, the staging criteria of the ovary, fallopian tube and peritoneum have just unified. The teaching points of this exhibit are: 1. To clarify the concept of STIC and apparent multicentric origin of HGSC of müllerian-derived tissues. 2. To show the examples of diseases along with the new staging criteria with MRI and CT.  

A. A brief interpretation of “STIC” theory. B. Imaging examples of HGSC of the ovary, fallopian tube, and peritoneum C. CT and MRI examples of the each stage of the diseases with emphasizing the changes of the revised FIGO staging system including:   1. Due to the difficulty in decision of the primary site, stage II was simplified.   2.  Exclusive lymph node metastasis is no longer stage IIIc as patients with retroperitoneal lymph node involvement without  peritoneal involvement have better prognosis.     3. Stage IV was divided into stage IVa with malignant pleural effusion and stage IVb with distant metastasis.  

http://abstract.rsna.org/uploads/2014/14004003/14004003_4mpx.pdf

Saida, T, Tanaka, Y, Matsumoto, K, Satoh, T, Yoshikawa, H, Minami, M, The Revised FIGO Staging System for Cancer of the Ovary, Fallopian Tube, and Peritoneum: Important Implications for Radiologists.  Radiological Society of North America 2014 Scientific Assembly and Annual Meeting, - ,Chicago IL. http://archive.rsna.org/2014/14004003.html